body, html, h1, h2, h3, h4, h5, h6, ul, ol, li, dl, dt, dd, header, menu, section, p, input, td, th, ins {
  padding: 0;
  margin: 0;
}

body{
  font-family: -apple-system, "微软雅黑", "Helvetica Neue", Helvetica,
  "Nimbus Sans L", Arial, "Liberation Sans", "PingFang SC", "Hiragino Sans GB",
  "Noto Sans CJK SC", "Source Han Sans SC", "Source Han Sans CN",
  "Microsoft YaHei", "Wenquanyi Micro Hei", "WenQuanYi Zen Hei", "ST Heiti",
  SimHei, "WenQuanYi Zen Hei Sharp", sans-serif;
  font-size:16px;
  line-height:1.5;
  color: #333;
}
#app {
  height: 100vh;
  overflow: hidden;
}
*{box-sizing:border-box}
*::before{box-sizing:border-box}
*::after{box-sizing:border-box}
:hover{outline: none;}
button,input{font: inherit;border: none;}
:focus{outline: none;}
ul, ol, li {list-style: none;}
a {text-decoration: none;color: inherit;}
a:hover {color: inherit; text-decoration: underline;}
i, em {font-style: normal;}
input, textarea, button, select, a {outline: none;border: none;}
table {border-collapse: collapse;border-spacing: 0;}
img {border: none;vertical-align: middle;}
/* 定义滚动条样式 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
/*定义滚动条轨道 内阴影+圆角*/
::-webkit-scrollbar-track {
  box-shadow: inset 0 0 0px rgba(240, 240, 240, .5);
  border-radius: 10px;
}
/*定义滑块 内阴影+圆角*/
::-webkit-scrollbar-thumb {
  background-color: #E1E2E4;
  border-radius: 10px;
  box-shadow: inset 0 0 0px rgba(240, 240, 240, .5);
}